### Home > CCA > Chapter A > Lesson A.1.8 > ProblemA-83

A-83.

Solve this problem by writing an equation using only one variable. Then write your answer with a complete sentence.

Mairé is thinking of two numbers. The first number is $14$ less than the second number. When she adds them, she gets $40$. Help her younger sister, Enya, figure out the numbers.

Let the second number be $x$. Write an expression for the first number in terms of $x$.

The equation you need to solve is $x + \left(x − 14\right) = 40$.